// 引入 SDK
const crawlab = require('crawlab-sdk')

const axios = require('axios')
const cheerio = require('cheerio')
const schoolName = '厦门大学'
const baseURL = 'https://news.xmu.edu.cn'
// 这是一个结果，需要为 object 类型
// const result = {name: 'crawlab'};

;(async () => {
  crawPage(`${baseURL}/1552/list1.htm`, rule)
  // 调用保存结果方法
  // await crawlab.saveItem(result);

  // // 关闭数据库连接，否则程序不会结束
  
})()

async function crawPage(url, func) {
  const { data: html } = await axios(url)
  const $ = cheerio.load(html)
  func && func($)
}

async function rule ($) {
  const res = $('#wp_news_w4 tr')
  for(let i = 0; i < res.length; i++) {
    const item = $(res[i])
    const href = baseURL + item.find('a').attr('href')
    const title = item.find('a').text()
    const date = item.find('div').text()
    await crawlab.saveItem({
      time: date,
      url: href,
      title,
      schoolName
    })
  }

  const next = $('.next').attr('href')
  if (next && next !== 'javascript:void(0);') {
    crawPage(`${baseURL}${next}`, rule)
  } else {
    await crawlab.close();
  }
}